Media Personalities Detained in China

SHANGHAI—Chinese authorities jailed two media personalities, both in their 70s, in separate cases that come as human rights groups report fresh government efforts to stifle public discussion ahead of the 25th anniversary of the Tiananmen Square crackdown.

The government's Xinhua news agency said early Thursday that 70-year-old Gao Yu, an outspoken journalist previously jailed for leaking state secrets, was recently detained by police in Beijing on suspicion of the same offense. China Central Television on Thursday showed...